Problema Solution
Sabrina goes to a bank and changes a $50 bill for $5 bills and $1 bills. There are 22 bills in all. How many of each kind are there?
Answer provided by our tutors
let 'x' represent the number of $5 bills, then '22-x' represents the number of $1 bills
50 = 5x + 22-x
solving for 'x' we have
x=7
22-7=15
there are 7 $5 bills and 15 $1 bills